<template>
  <div class="login-container">

    <a-form @submit="handleLogin" class="login-form" :form="form">
      <div class="title-container">
        <h3 class="title">管理员登录</h3>
      </div>
      <a-form-item class="error">
        <div v-if="isError">用户名或密码错误!</div>
      </a-form-item>
      <a-form-item>
        <a-input type="text" placeholder="账号"
                 auto-complete="on" v-decorator="[
          'loginName',
          { rules: [{ required: true, message: '请输入登录用户名!' }] }
        ]">
          <a-icon slot="prefix" type='user' style="color: rgba(0,0,0,.25)" />
        </a-input>
      </a-form-item>

      <a-form-item >
        <a-input type="password" placeholder="密码"
                 auto-complete="on" @pressEnter="handleLogin" v-decorator="[
          'password',
          { rules: [{ required: true, message: '请输入登录密码!' }] }
        ]">
          <a-icon slot="prefix" type='lock' style="color: rgba(0,0,0,.25)" />
        </a-input>
      </a-form-item>

      <a-button type="primary" :loading="loading" style="width:100%;margin-bottom:30px;" @click="handleLogin">登录</a-button>
    </a-form>
  </div>
</template>

<script>
    export default {
        name: 'Login',
        components: {},
        beforeCreate(){
            this.form = this.$form.createForm(this)
        },
        data() {
            return {
                isError:false,
                loading: false,
                showDialog: false,
                redirect: undefined
            }
        },
        watch: {
            $route: {
                handler: function(route) {
                    this.redirect = route.query && route.query.redirect
                },
                immediate: true
            }
        },
        mounted() {
            // this.form.setFieldsValue({"result":"ok"})
        },

        methods: {
            handleLogin(e) {
                e.preventDefault()
                this.form.validateFields((err, values) => {
                    if (!err) {
                        this.loading = true
                        this.$store.dispatch('LoginByUsername', values).then(() => {
                            this.loading = false;
                            this.$router.push({ path: this.redirect || '/' })
                        }).catch((e) => {
                            this.loading = false;
                            this.isError = true;
                            let that = this;
                            setTimeout(()=>{that.isError=false;},3000)
                        })
                    }else {
                        console.log('error submit!!')
                        return false
                    }
                })
            },

        }
    }
</script>

<style rel="stylesheet/scss" lang="scss">
  /* 修复input 背景不协调 和光标变色 */
  $bg:#283443;
  $light_gray:#eee;
  $cursor: #fff;

  @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input{
      color: $cursor;
      &::first-line {
        color: $light_gray;
      }
    }
  }
  /* reset element-ui css */
  .login-container {
    .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;
      input {
        background: transparent;
        border: 0px;
        -webkit-appearance: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;
        &:-webkit-autofill {
          -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !important;
        }
      }
    }
    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
  }
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
  $bg:#2d3a4b;
  $dark_gray:#889aa4;
  $light_gray:#eee;

  .login-container {
    position: fixed;
    height: 100%;
    width: 100%;
    background-color: $bg;
    .error{
      height:40px;
      line-height: 40px;
      margin:0;
      color:#ff0000;
      overflow: hidden;
    }
    .login-form {
      position: absolute;
      left: 0;
      right: 0;
      width: 520px;
      max-width: 100%;
      padding: 35px 35px 15px 35px;
      margin: 120px auto;
      text-align: left;
    }
    .tips {
      font-size: 14px;
      color: #fff;
      margin-bottom: 10px;
      span {
        &:first-of-type {
          margin-right: 16px;
        }
      }
    }
    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
    }
    .title-container {
      position: relative;
      .title {
        font-size: 26px;
        color: $light_gray;
        margin: 0px auto 40px auto;
        text-align: center;
        font-weight: bold;
      }
      .set-language {
        color: #fff;
        position: absolute;
        top: 5px;
        right: 0px;
      }
    }
    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
      user-select: none;
    }
    .thirdparty-button {
      position: absolute;
      right: 35px;
      bottom: 28px;
    }
  }
</style>
